Willi Footwear

Slim Black Thongs + Black Diamante Straps

Slim Black Thongs + Black Diamante Straps
Slim Black Thongs + Black Diamante Straps Slim Black Thongs + Black Diamante Straps Slim Black Thongs + Black Diamante Straps Slim Black Thongs + Black Diamante Straps Slim Black Thongs + Black Diamante Straps
5 Star Reviews

AUD $29.95

Interchangeable Size

  • *** PRE-ORDER ONLY - Delivery due in September
  • Black straps attached + Comes with an additional pair of coloured Diamante' straps
  • Tapered foot bed, with foot arch support
  • Lightweight premium blend rubber
  • Foot-bed moulds to the shape of your feet
  • Slim fit base with slim straps
  • Non-slip rubber sole
  • Unisex size is on the heel of the base and bottom of the boomerangs
  • Premium PVC foot straps with metal logo badge 
  • Boomerang plugs allow the straps & bases to be interchangeable
  • Too tight or too loose? Get the next size up or down in the straps
  • Get FREE replacement straps if they break
  • Customise your colours and style in less than 30 seconds... no tools, no fuss!

  • The boomerang plugs have been designed to help minimise the dreaded “blow out” (when the plug snaps off). If, for some reason you get ‘unplugged’, you should be able to simply push the plug back through the hole in the base.
    If the strap breaks - let us know and we'll replace them for FREE :)


The bases will vary a few millimetres. It is best to measure your foot or an old pair, from the centre of the heel, to the top of your big toe.

Please always check your size before ordering as you will incur postage fees should you need to swap for a different size.

Do you have really narrow or really wide feet?
Smaller or larger sized straps can be added to different sized bases. This means you can customise your fit to perfection!
Slim straps can be added to the corresponding Mens / Unisex base and vice versa.
Get in touch if you need help choosing your size.

The Boomerangz size range is based on the MENS US size range. Although they are UNISEX (it says UNISEX on the base) – This means that if you are ordering a ladies slim style and you are normally a 9, you will need to order a 7/8 instead. If you are normally a 7/8, you will need to order a 6 and so on… best to measure your foot or an old pair and use the sizing charts provided 🙂


  1. Click on the link below of your desired size
  2. The PDF will open in a new window
  3. Click FILE then click PRINT
  4. Make sure PAGE SCALING is set to NONE
  5. Place your foot in the outline to see if that is your correct size
  • US Slim 4/5 — Aus Slim 4/5 — 235mm L — 94mm W
  • US Slim 6 — Aus Slim 6 — 247mm L — 95mm W
  • US Slim 7/8 — Aus Slim 7/8 — 260mm L — 98mm W
  • US Slim 9 — Aus Slim 9 — 272mm L — 100mm W
  • US Slim 10/11 — Aus Slim 10/11 — 286mm L — 103mm W
  • US Regular 7/8 — Aus Reg / Unisex 7/8 — 260mm L — 100mm W
  • US Regular 9 — Aus Reg / Unisex 9 — 272mm L — 102mm W
  • US Regular 10/11 — Aus Reg / Unisex 10/11 — 286mm L — 107mm W
  • US Regular 12 — Aus Reg / Unisex 12 — 298mm L — 109mm W
  • US Regular 13/14 — Aus Reg / Unisex 13/14 — 308mm L — 113mm W

All orders are registered and come with a tracking number.

Depending on your location, Registered Post will usually take 2-5 days.
Express Post will usually take 1-2 days.
Remote areas may take longer.

  • Orders $0 – $40 = $7.95 – Standard Trackable Delivery
  • Orders $40 – $80 = $9.95 – Standard Trackable Delivery
  • Orders $0 – $80 = $11.95 – Express Trackable Delivery
  • Orders over $80 = FREE EXPRESS Delivery – Express & Trackable

Partner company products may be sent with a different postal or courier service.

Can’t wait until pay day? Use After Pay!

*Within Australia ONLY

Awesome thongs by the way. Best I have ever had – Michael

They’re the best ones I’ve ever owned!
5 stars from me. I’ve been ordering a new pair of thongs every year since 2017 cause they’re the best ones I’ve ever owned. I had one blow out a couple of years ago and I had new straps sent to me free of charge straight away. Bloody great service and bloody great thongs. Well done Boomerangz. – Nigel

Excellent products and outstanding service.  Great job Boomerangz!! – Jo

Best thongs on the market!
Had my Boomerangz for a few years now, best thongs on the market by a mile, on one occasion, the straps have broken and they were promptly replaced without a problem. I’ve had other big name brands before and only got a couple of months out of them before the sole wore through or straps broke where as these soles are still going strong (and bloody comfortable)…. I highly recommend these to everyone, especially for those who are hard on their footwear as they have with-stood some heavy lifting under me! Cheers. – Chris

I LOVE Them!
My thongs are still doing great after 12 months, but I WANT an upgrade haha.. I LOVE them. So happy with the design of them. – Rebecca

Simply THE Best!
This is the second time I have purchased the Boomerangz Thongs and they are simply THE best and longest lasting footwear I have owned! – David

Actually the BEST!
I had a blowout… the front part of the strap broke! But guess what? It was actually the BEST!! I just swapped out the strap. Good as new and a cool new colour – feels like new thongs! – Jess

These thongs feel really strong and sturdy and I love the fact that if the strap ever breaks I can slip a new one in. Genius! – Cran
(Originally posted on Amazon.com.au)

The best thongs!
Great thongs, quick delivery and excellent service. I have since gone back and bought more of them. – Gerry
(Originally posted on Amazon.com.au)

Free replacement straps? No more blowouts? Yes please!! Awesome product. Awesome service. – Shaun

Feel the love!
Love your company, love your product, love your service and will be recommending you to every man, woman and child within my acquaintance. Keep up the good work. – Alison

Very Happy!
Very happy with the feel and comfort of my new thongs and the ease of changing the straps. I am now looking forward to buying another pair soon. – Jim